Improvement in fire-places



Patented Marchznmf P. A BEN D R0 TH.

Fireplace.

THEGRAPHIG C0.PPiDTO.-LITH.39&4 PARK PLAGE,N.Y.

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WILLIAM r. AEENDEOTH, oE roer oHEsrEE, NEW YORK.

IMPROVEMENT IN FIRE-PLACES.

Specification forming part of Letters Patent No. 16L19 l, dated March 23, 1875; application filed October 26, 1874.

To all whom it may concern:

Be it known that I, WlLLIAM P. ABEN- DROTH, ot the town of Port Chester, in the county of Westchester and State of New York, have invented certain Improvements in Fire- Place Stoves, of which the following is aspeciiication:

fffhis invention pertains to the class of heat- ,f ing apparatus known as lire-place stoves, but i it also possesses certain qualities that make it ipeculiarly' adapted to a grate and stove combined; and the invention consists in combining withV a hooded grate and valve a perforated reflector, as will hereafter appear 5 and the invention also consists in making the front edge of the hood over the grate with a iiange to project wholly in front of the face-plate or jainb, so that the seam or joint will open into the fresh air, instead of from the lire pot or chamber, as is now commonly the case.

Figure l represents a front elevation of the invention with the front plate removed.` Fig. 2 is a vertical section`of the heater at a right angle to Fig. 1, and having the view taken from the right-hand side.

The hooded grate is shown at A, and is placed in a horizontal position, and its plan is that of a semicircle, the diameter being to the front and the curve portion to the rear, which lits into the semicircular portion of a cast cylinder, which rises up in a vert-ical position for about one-half its height, and then inclines forward, and also curves over to the center from each side, forming a domeshaped arch for about onehalt' its diameter, as represented at B in the drawings. hooded grate is an exterior wall or jacket of castings, a little larger on the sides and rear, and which forms an airspace between the two, as at U in the drawings. This exterior wall 'ts up closely to the front plate or jamb, but the interior shell or hood over the grate projects forward in front of the face or jamb plate, and through the archway of the same, and is provided with a rib or flange, as at D, which extends around in front of the faceplate, as at E, so that the joint between it and the faceplate E is exterior to the tire-chamber, and cannot, therefore, admit the leakage ot gases to the hotair chamber or space be- Surrounding this tween the two walls, and thence to the chamber above. In the rear of the dome, over the grate, is placed a valve or damper, as at F, which closes the central entrance to the smoke stack above it, and said stack, as at G, is conical in form, and spreads out over the outer surface of the dome, and within the space betweenthe dome and the exterior wall, which rises vertically in the rear, and thereby forms a large heatingchamber around the base of the smoke-stack. Around said central valve or damper, and just within the inner surface of the smoke stack or flue, is a series of holes through the dome over the grate, so that when the valve or damper is closed a partial opening is left for the smoke and heat rising from the grate below, and which would rush up through the center of the stack if no valve or damper were there to prevent their central course, and consequently the heat is caused to impiuge upon the inclined wall of the stack or line, and thereby impart a greater degree ot' radiation than if allowed to escape through the open center, and thence into the open air. This spreading of the rising heat from the grate against the convergent wall of the smokestack is also facilitated very greatly by the use of a perforated reflector, as at H, which, when the heat from the grate is not wanted in the room, but in an upper chamber, is placed over the open space in front of the grate, and serves as a reflector or a reverberator of the heat, and atthe -same time permits a sufficient current of air over the grate to assist in supplying combustion and circulation, and also causes a partial draft through the grate, similar to the.

ordinary blower. The combination of these elements is of very great importance in utilizing the heat from the grate for the upper chambers, and it may be controlled by the dampers in the side liues, as at K and L, one or both -of which may be used, as desired. If, however, the heat is not wanted in the upper chambers, the dainpers may be closed, and the heat will be thrown out through the openin g, at M, in the front plate over the arch.

A cold-air space is left below the ash-pan, as shown atN 5 but this may be closed in front, and the air allowed to enter from the side or rear through suitable openings for that purpose. This, however, forms no part ofthe in- 2. The combination, with a fire-place, of vention, as such a construction is well known; the dome-shaped hood, provided with the rib but or ange D, substantially as and for the pur- I do eiaimpose described. 1. In combination with ahooded grate, sup- WILLIAM P. ABENDROTH. .y piemental heater, and. valve, a perforated re- Witnesses: ieotor, substantially as described, and for the BOYD ELIOT,

purposes set forth. CHAS. H. LEONARD. 

